Hook



FIG. 1 is a perspective view of the design for a hook.

FIG. 2 is a perspective view of the hook.

FIG. 3 is a top view of the hook.

FIG. 4 is a front view of the hook.

FIG. 5 is a bottom view of the hook.

FIG. 6 is a side view of the hook.

FIG. 7 is a perspective view of the hook as attached to a squareextender; and,

FIG. 8 is a perspective view of the hook as attached to a cylindricalextender.

The broken lines in the drawings depict the environment of the designand form no part of the claimed design.

CLAIM The ornamental design for a hook, as shown and described. 